https://media.ccc.de/v/33c3-8399-reverse_engineering_outernet

Outernet is a company whose goal is to ease worldwide access to internet contents by broadcasting files through geostationary satellites. Most of the software used for Outernet is open source, but the key parts of their receiver are closed source and the protocols and specifications of the signal used are secret. I have been able to reverse engineer most of the protocols, and a functional open source receiver is now available.

['Daniel Estévez']